C Specification

To begin conditional rendering, call:

Warning
 This functionality is superseded by vkCmdBeginConditionalRendering2EXT. See Legacy Functionality for more information. 
// Provided by VK_EXT_conditional_rendering
void vkCmdBeginConditionalRenderingEXT(
    VkCommandBuffer                             commandBuffer,
    const VkConditionalRenderingBeginInfoEXT*   pConditionalRenderingBegin);

Parameters

  • commandBuffer is the command buffer into which this command will be recorded.

  • pConditionalRenderingBegin is a pointer to a VkConditionalRenderingBeginInfoEXT structure specifying parameters of conditional rendering.

Description

Valid Usage

  • VUID-vkCmdBeginConditionalRenderingEXT-None-01980
    Conditional rendering must not already be active

Valid Usage (Implicit)

  • VUID-vkCmdBeginConditionalRenderingEXT-commandBuffer-parameter
    commandBuffer must be a valid VkCommandBuffer handle

  • VUID-vkCmdBeginConditionalRenderingEXT-pConditionalRenderingBegin-parameter
    pConditionalRenderingBegin must be a valid pointer to a valid VkConditionalRenderingBeginInfoEXT structure

  • VUID-vkCmdBeginConditionalRenderingEXT-commandBuffer-recording
    commandBuffer must be in the recording state

  • VUID-vkCmdBeginConditionalRenderingEXT-commandBuffer-cmdpool
    The VkCommandPool that commandBuffer was allocated from must support VK_QUEUE_COMPUTE_BIT, or VK_QUEUE_GRAPHICS_BIT operations

  • VUID-vkCmdBeginConditionalRenderingEXT-suspended
    This command must not be called between suspended render pass instances

  • VUID-vkCmdBeginConditionalRenderingEXT-videocoding
    This command must only be called outside of a video coding scope

Host Synchronization

  • Host access to commandBuffer must be externally synchronized

  • Host access to the VkCommandPool that commandBuffer was allocated from must be externally synchronized

Command Properties
Command Buffer Levels Render Pass Scope Video Coding Scope Supported Queue Types Command Type

Primary
Secondary

Both

Outside

VK_QUEUE_COMPUTE_BIT
VK_QUEUE_GRAPHICS_BIT

Action
State
Conditional Rendering

vkCmdBeginConditionalRenderingEXT is not affected by conditional rendering

See Also

VK_EXT_conditional_rendering, VkCommandBuffer, VkConditionalRenderingBeginInfoEXT

Document Notes

For more information, see the Vulkan Specification.

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

Copyright

Copyright 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0